Alert archive / Wyoming / Red Flag Warnings in 2020
Red Flag Warning 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Aug 9, 2020, 2:32 PM MDT. It took effect at Aug 10, 2020, 9:00 AM MDT. It was in force for 11 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 9, 2020, 2:32 PM MDT (20:32 UTC)
- In effect from
- Aug 10, 2020, 9:00 AM MDT
- Expired
- Aug 10, 2020, 8:00 PM MDT
- In force
- 11 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted.
254 WWUS85 KCYS 092032 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 232 PM MDT Sun Aug 9 2020 ...CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON AND MONDAY ALONG AND WEST OF THE LARAMIE RANGE... WYZ303>308-101100- /O.UPG.KCYS.FW.A.0016.200810T1600Z-200811T0200Z/ /O.NEW.KCYS.FW.W.0021.200810T1500Z-200811T0200Z/ /O.CON.KCYS.FW.W.0020.000000T0000Z-200810T0200Z/ Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Upper North Platte River Basin-Snowy Range/Medicine Bow NF- Laramie Valley/Shirley Basin- 232 PM MDT Sun Aug 9 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... ...RED FLAG WARNING IN EFFECT FROM 9 AM TO 8 PM MDT MONDAY FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 9 AM to 8 PM MDT Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 303 through 308. * WIND...West to southwest 15 to 20 mph sustained with gusts to 30 mph. Similar winds expected Monday. * HUMIDITY...8 to 12 percent this afternoon with similar humidity expected Monday. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ310-100200- /O.EXA.KCYS.FW.W.0020.000000T0000Z-200810T0200Z/ Platte/Goshen/Central and Eastern Laramie- 232 PM MDT Sun Aug 9 2020 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 310... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 8 PM MDT this evening. * AFFECTED AREA...Fire weather zone 310. * WIND...West to southwest 15 to 20 mph sustained with gusts to 30 mph. * HUMIDITY...8 to 12 percent this afternoon. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ302-309-100200- /O.CON.KCYS.FW.W.0020.000000T0000Z-200810T0200Z/ North Laramie Range/Medicine Bow NF- South Laramie Range/Medicine Bow NF- 232 PM MDT Sun Aug 9 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 302 AND 309... * AFFECTED AREA...Fire weather zones 302 and 309. * WIND...West to southwest 15 to 20 mph sustained with gusts to 30 mph. * HUMIDITY...8 to 12 percent this afternoon. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
4 follow-up statements
525 WWUS85 KCYS 100145 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 745 PM MDT Sun Aug 9 2020 ...CRITICAL FIRE WEATHER CONDITIONS MONDAY WEST OF THE LARAMIE RANGE... WYZ303>308-101100- /O.EXP.KCYS.FW.W.0020.000000T0000Z-200810T0200Z/ /O.CON.KCYS.FW.W.0021.200810T1500Z-200811T0200Z/ Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Upper North Platte River Basin-Snowy Range/Medicine Bow NF- Laramie Valley/Shirley Basin- 745 PM MDT Sun Aug 9 2020 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 8 PM MDT MONDAY FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... * AFFECTED AREA...Fire weather zones 303 through 308. * WIND...West to southwest 15 to 20 mph sustained with gusts to 30 mph Monday. * HUMIDITY...8 to 12 percent Monday afternoon. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ302-309-310-100245- /O.EXP.KCYS.FW.W.0020.000000T0000Z-200810T0200Z/ North Laramie Range/Medicine Bow NF- South Laramie Range/Medicine Bow NF- Platte/Goshen/Central and Eastern Laramie- 745 PM MDT Sun Aug 9 2020 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 302, 309, AND 310... West to northwest winds 10 to 15 mph with gusts to 20 mph will shift to the east and northeast with the passage of a front this evening. Humidities will increase above 15 percent as well. $$
459 WWUS85 KCYS 100817 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 217 AM MDT Mon Aug 10 2020 ...CRITICAL FIRE WEATHER CONDITIONS CONTINUE TODAY INTO TUESDAY WEST OF THE LARAMIE RANGE... WYZ303>308-110000- /O.NEW.KCYS.FW.A.0017.200811T1700Z-200812T0200Z/ /O.CON.KCYS.FW.W.0021.200810T1500Z-200811T0200Z/ Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Upper North Platte River Basin-Snowy Range/Medicine Bow NF- Laramie Valley/Shirley Basin- 217 AM MDT Mon Aug 10 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Tuesday morning through Tuesday evening. * AFFECTED AREA...Fire weather zones 303 through 308. * WIND...West to southwest 15 to 20 mph sustained with gusts to 35 mph today. Similar winds are expected Tuesday. * HUMIDITY...8 to 12 percent this afternoon. Similar humidity expected Tuesday. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ WYZ301-302-110000- /O.NEW.KCYS.FW.A.0017.200811T1700Z-200812T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-North Laramie Range/Medicine Bow NF- 217 AM MDT Mon Aug 10 2020 ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR WESTERN PORTIONS OF FIRE WEATHER ZONES 301 AND 302... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Tuesday morning through Tuesday evening. * AFFECTED AREA...Western portions of Fire weather zone 301. Western portions of Fire weather zone 302. * WIND...West to southwest winds 15 to 20 mph with gusts of 30 to 35 mph expected. * HUMIDITY...8 to 12 percent during the afternoon. * HAINES...6 * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
279 WWUS85 KCYS 102014 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 214 PM MDT Mon Aug 10 2020 ...CRITICAL FIRE WEATHER CONDITIONS CONTINUE TODAY AND AGAIN TUESDAY MAINLY OVER AND WEST OF THE LARAMIE RANGE... WYZ303>308-111000- /O.UPG.KCYS.FW.A.0017.200811T1700Z-200812T0200Z/ /O.NEW.KCYS.FW.W.0022.200811T1700Z-200812T0200Z/ /O.CON.KCYS.FW.W.0021.000000T0000Z-200811T0200Z/ Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Upper North Platte River Basin-Snowy Range/Medicine Bow NF- Laramie Valley/Shirley Basin- 214 PM MDT Mon Aug 10 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 303 through 308. * WIND...West to southwest 15 to 20 mph sustained with gusts to 30 mph today. Similar winds are expected Tuesday. * HUMIDITY...8 to 12 percent this afternoon. Similar humidity expected Tuesday. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ302-111000- /O.UPG.KCYS.FW.A.0017.200811T1700Z-200812T0200Z/ /O.NEW.KCYS.FW.W.0022.200811T1700Z-200812T0200Z/ North Laramie Range/Medicine Bow NF- 214 PM MDT Mon Aug 10 2020 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Western portions of Fire weather zone 302. * WIND...West to southwest winds 15 to 20 mph with gusts of 30 to 35 mph expected. * HUMIDITY...8 to 12 percent during the afternoon. * HAINES...6 * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ301-111000- /O.CON.KCYS.FW.A.0017.200811T1700Z-200812T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 214 PM MDT Mon Aug 10 2020 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR WESTERN PORTIONS OF FIRE WEATHER ZONES 301... * AFFECTED AREA...Western portions of Fire weather zone 301. * WIND...West to southwest winds 15 to 20 mph with gusts to 30 mph possible. * HUMIDITY...8 to 12 percent during the afternoon. * HAINES...6 * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
527 WWUS85 KCYS 110202 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 802 PM MDT Mon Aug 10 2020 ...CRITICAL FIRE WEATHER CONDITIONS TUESDAY ALONG AND WEST OF THE LARAMIE RANGE... WYZ303>308-111700- /O.EXP.KCYS.FW.W.0021.000000T0000Z-200811T0200Z/ /O.CON.KCYS.FW.W.0022.200811T1700Z-200812T0200Z/ Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Upper North Platte River Basin-Snowy Range/Medicine Bow NF- Laramie Valley/Shirley Basin- 802 PM MDT Mon Aug 10 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305, 306, 307, AND 308... * AFFECTED AREA...Fire weather zones 303 through 308. * WIND...West to southwest 15 to 25 mph sustained with gusts to 35 mph Tuesday. * HUMIDITY...8 to 11 percent. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ301-111700- /O.UPG.KCYS.FW.A.0017.200811T1700Z-200812T0200Z/ /O.EXA.KCYS.FW.W.0022.200811T1700Z-200812T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 802 PM MDT Mon Aug 10 2020 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Northern and western portions of fire weather zone 301. * WIND...West to southwest winds 15 to 20 mph with gusts to 30 mph. * HUMIDITY...8 to 12 percent. * HAINES...5 to 6 * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ302-111700- /O.CON.KCYS.FW.W.0022.200811T1700Z-200812T0200Z/ North Laramie Range/Medicine Bow NF- 802 PM MDT Mon Aug 10 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 302... * AFFECTED AREA...Central and western portions of fire weather zone 302. * WIND...West to southwest winds 15 to 20 mph with gusts of 30 to 35 mph. * HUMIDITY...8 to 12 percent. * HAINES...6 * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 1:33 AM MDT | Fire Weather Watch | CYS | 13 hr |
Nearby
Red Flag Warnings in Wyoming, 2020Every red flag warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.